* clean up error handling when user requests to use a non file object

* clean up error handling when user requests to use a non file object
# HG changeset patch
# User [e-mail]
# Node ID 1ae21732349f5b6dba2941609a044d9c365a6fb2
# Parent  94744f6fe0e7c19b10fab7eb24249f3eeaa5489a
* clean up error handling when user requests to use a non file object
  - use os.path.exists() to verify the item exists
  - use os.path.isfile() to check whether the item is a file or not

diff -r 94744f6fe0e7 -r 1ae21732349f mercurial/hg.py

--- a/mercurial/hg.py	Mon Jul 04 11:06:01 2005 -0800
+++ b/mercurial/hg.py	Mon Jul 04 11:20:20 2005 -0800
@@ -753,8 +753,10 @@
     def add(self, list):
         for f in list:
             p = self.wjoin(f)
-            if not os.path.isfile(p):
-                self.ui.warn("%s does not exist!\n" % f)
+            if not os.path.exists(p):
+                self.ui.warn("%s does not exist!\n" % f)                
+            elif not os.path.isfile(p):
+                self.ui.warn("%s not added: mercurial only supports files currently\n" % f)
             elif self.dirstate.state(f) == 'n':
                 self.ui.warn("%s already tracked!\n" % f)
             else:
@@ -770,7 +772,7 @@
     def remove(self, list):
         for f in list:
             p = self.wjoin(f)
-            if os.path.isfile(p):
+            if os.path.exists(p):
                 self.ui.warn("%s still exists!\n" % f)
             elif self.dirstate.state(f) == 'a':
                 self.ui.warn("%s never committed!\n" % f)
@@ -782,8 +784,10 @@
 
     def copy(self, source, dest):
         p = self.wjoin(dest)
-        if not os.path.isfile(dest):
+        if not os.path.exists(dest):
             self.ui.warn("%s does not exist!\n" % dest)
+        elif not os.path.isfile(dest):
+            self.ui.warn("copy failed: %s is not a file\n" % dest)            
         else:
             if self.dirstate.state(dest) == '?':
                 self.dirstate.update([dest], "a")